Across
- 2. - the collective mass of protons and neutrons in the nucleus of an atom
- 3. - two same types of atoms that share electrons equally
- 5. - two oppositely charged atoms lose or gain electrons to form these bonds
- 7. - located above a chemical symbol, this number refers to the quantity of protons in an atom of an element
- 9. - particles with a negative charge and a low mass
- 10. - particles with a neutral charge
- 13. - a different number of neutrons in the same element
- 14. - a partially positive hydrogen atom that is weakly bonded to a partially negative atom
Down
- 1. - molecules that do not dissolve when in contact with water
- 4. - two different types of atoms that share electrons unequally, due to the electrons being attracted to the more electronegative atom
- 6. - an atom or groups of atoms with a positive charge
- 8. - a chemical that can allow electricity through when dissolved in water
- 11. - a molecule that is unstable due to an unpaired electron
- 12. - particles with a positive charge